The Wisconsin Dells Police Department is conducting a death investigation after a body was found at a hotel Sunday morning.

Authorities said they were called to check on the welfare of two people staying at The Vue on River Road at about 11:30 a.m. on Valentine’s Day.

When they arrived, a man told police he was OK but that the woman in the room was dead.

The man was detained, and the Wisconsin Dells Police Department said they are conducting an in-depth investigation.

Police said they believe this was an isolated incident and there is no threat to the public.